Knoxville Weather Forecast

    • 73
    • 95

    Increasing Clouds

    • 68
    • 93

    Mostly Sunny

    • 63
    • 86

    Mostly Sunny

    • 66
    • 86

    Partly Sunny

    • 73
    • 92

    Mostly Sunny

    • 70
    • 93

    Partly Sunny

Today 4 Sep Knox

Mostly sunny. Hot with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 107.

Tonight 4 Sep Knox

Partly cloudy in the Evening, then mostly clear with a slight chance of Showers after midnight. Humid with Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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Knoxville Temperature Statistics

September Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 1 September, 2026

    70.7 °F

  • Average September

    81.7 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    62.5 °F
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